Novel puncture needle

Abstract

The utility model relates to the technical field of puncture instruments, in particular to a novel puncture needle. The puncture needle comprises a handheld part and an inner needle body assembled at one end of the handheld part, a puncture needle head is integrally fixed to the end, away from the handheld part, of the inner needle body, an auxiliary mechanism is assembled between the handheld part and the inner needle body and used for protecting the puncture needle head, and the auxiliary mechanism comprises a matching tube, an outer needle tube and a matching assembly. A matching tube is fixed to the end, away from the inner needle body, of the handheld part, and an outer needle tube is slidably connected to the outer side of the inner needle body. By means of the structural design of the auxiliary mechanism, the matching assembly and the limiting assembly, the position of the puncture needle head in the outer needle tube can be conveniently adjusted, it can be guaranteed that the puncture needle head is not shaken or touched by external instruments before puncture is conducted, meanwhile, the outer side of the inner needle body is coated with the Teflon coating, and therefore the puncture needle head cannot be damaged. The puncture smoothness can be improved, and the stability and safety in the puncture process are improved.

Description

Technical Field

[0001] This utility model relates to the field of puncture instrument technology, and in particular to a novel puncture needle. Background Technology

[0002] In the current medical field, ultrasound technology is used to guide puncture needles in real time to perform procedures such as puncture and release therapy in designated areas. During the procedure, the doctor places the ultrasound probe close to the predetermined puncture area and advances the puncture needle from the side of the probe. Through the ultrasound imaging system, the position of organs, tissue structures, and the needle body and tip can be observed in real time, ensuring the goal of precise puncture and accurate treatment.

[0003] For example, the ultrasound-enhanced radiographic puncture needle with a surface coating, as disclosed in the announcement (CN217162235U), includes a needle tip, a needle shaft, and a needle handle. The needle tip is shaped as a bevel, a triangular pyramid, or a blade. The needle shaft has a mesh-like interwoven thread, and the outer surface of the needle shaft is coated to improve the smoothness of puncture.

[0004] In summary, the following technical problems exist in the existing technology: During the use of the existing technology, after the puncture needle is disinfected and placed in a medical metal instrument box, due to the lack of protection for the puncture needle tip, the puncture needle tip often accidentally comes into contact with other hard objects or is damaged or blunted by other instruments due to shaking. There is room for improvement. Therefore, we propose a new type of puncture needle. Utility Model Content

[0005] The purpose of this invention is to provide a novel puncture needle to solve the problems mentioned in the background section.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A novel puncture needle includes a handle and an inner needle body assembled at one end of the handle. A puncture needle tip is integrally fixed at the end of the inner needle body away from the handle. An auxiliary mechanism is assembled between the handle and the inner needle body to protect the puncture needle tip. The auxiliary mechanism includes a fitting tube, an outer needle tube, and a fitting assembly. The fitting tube is fixed at the end of the handle away from the inner needle body. The outer needle tube is slidably connected to the outside of the inner needle body. The outer needle tube is fixed to the handle. A fitting assembly is assembled between the inner needle body and the handle.

[0008] Preferably, the mating assembly includes a movable tube, a transmission rod, a spiral continuous groove, and a limiting head. The movable tube is slidably connected to the inner side of the handheld part and is fixed to the inner needle body. The transmission rod is slidably connected to the inner side of the movable tube. A spiral continuous groove is formed on the outer side of the transmission rod. A limiting head is slidably connected to the inner side of the spiral continuous groove and is fixed to the movable tube.

[0009] Preferably, a handle is fixed to one end of the transmission rod.

[0010] Preferably, a limiting component is assembled between the mating tube and the transmission rod, and the limiting component is used to limit and guide the transmission rod.

[0011] Preferably, the limiting component includes a collar, an annular groove, a straight groove, and a connecting lug. A collar is fixed to the outer side of the transmission rod. Two annular grooves corresponding to the positions of the collar are opened on the inner side of the mating tube. The collar and the annular grooves are in clearance fit. Connecting lugs are fixed on both sides of the collar. Straight grooves corresponding to the positions of the connecting lugs are opened on both sides inside the mating tube. The straight grooves are slidably connected to the connecting lugs.

[0012] Preferably, a plurality of medical rubber particles are evenly distributed and fixed on the inner side of the annular groove, and the medical rubber particles are in contact with the connecting ear.

[0013] Preferably, the outer sides of the inner needle body and the puncture needle tip are coated with a Teflon coating.

[0014] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0015] At the same time, through the above technical solutions, this utility model has at least the following beneficial effects:

[0016] This invention, through the structural design of auxiliary mechanisms, cooperating components, and limiting components, makes it easy to adjust the position of the puncture needle inside the outer needle tube. Before puncture, it ensures that the puncture needle is not disturbed by the shaking of external instruments. At the same time, the outer side of the inner needle body is coated with Teflon, which can increase the smoothness during puncture and improve the stability and safety of the puncture process. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of the handheld part, the mating tube, and the outer needle tube of this utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between the transmission rod and the collar of this utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure between the annular groove and the medical rubber particles of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] In the diagram: 1. Handhold; 2. Inner needle body; 3. Puncture needle; 4. Matching tube; 5. Outer needle tube; 6. Movable tube; 7. Transmission rod; 8. Continuous spiral groove; 9. Limiting head; 10. Handle; 11. Collar; 12. Annular groove; 13. Straight groove; 14. Connecting ear; 15. Medical rubber granules. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] Example 1

[0026] Reference Figure 1-4 A novel puncture needle includes a handle 1 and an inner needle body 2 assembled at one end of the handle 1. A puncture needle head 3 is integrally fixed at the end of the inner needle body 2 away from the handle 1. An auxiliary mechanism is assembled between the handle 1 and the inner needle body 2. The auxiliary mechanism is used to protect the puncture needle head 3. The auxiliary mechanism includes a mating tube 4, an outer needle tube 5, and a mating assembly. The mating tube 4 is fixed at the end of the handle 1 away from the inner needle body 2. The outer needle tube 5 is slidably connected to the outside of the inner needle body 2. The outer needle tube 5 is fixed to the handle 1. A mating assembly is assembled between the inner needle body 2 and the handle 1.

[0027] The assembly includes a movable tube 6, a transmission rod 7, a spiral continuous groove 8, and a limiting head 9. The movable tube 6 is slidably connected to the inner side of the handheld part 1. The movable tube 6 is fixed to the inner needle body 2. The transmission rod 7 is slidably connected to the inner side of the movable tube 6. A spiral continuous groove 8 is opened on the outer side of the transmission rod 7. The limiting head 9 is slidably connected to the inner side of the spiral continuous groove 8. The limiting head 9 is fixed to the movable tube 6. When the transmission rod 7 rotates, since the spiral continuous groove 8 is slidably connected to the limiting head 9, and the transmission rod 7 is slidably connected to the movable tube 6, the limiting head 9 can drive the movable tube 6 and the inner needle body 2 to move synchronously.

[0028] A handle 10 is fixed to one end of the transmission rod 7, which makes it easy for the user to rotate the transmission rod 7.

[0029] The outer sides of the inner needle body 2 and the puncture needle 3 are coated with Teflon, which increases the smoothness of the puncture process.

[0030] Example 2

[0031] Further optimizations to Example 1, specifically, such as... Figure 3-4 As shown, a limiting component is assembled between the mating tube 4 and the transmission rod 7. The limiting component is used to limit and guide the transmission rod 7.

[0032] The limiting assembly includes a collar 11, an annular groove 12, a straight groove 13, and a connecting ear 14. The collar 11 is fixed to the outside of the transmission rod 7. Two annular grooves 12 corresponding to the positions of the collar 11 are opened on the inside of the mating tube 4. The collar 11 and the annular grooves 12 are in clearance fit. Connecting ears 14 are fixed on both sides of the collar 11. Straight grooves 13 corresponding to the positions of the connecting ears 14 are opened on both sides of the inside of the mating tube 4. The straight grooves 13 and the connecting ears 14 are slidably connected. When it is necessary to adjust the extension length range of the puncture needle 3, the handle 10 is rotated so that the connecting ear 14 corresponds to the position of the straight groove 13. Then, the handle 10 is pulled or pushed so that the connecting ear 14 moves along the inside of the straight groove 13, so that the connecting ear 14 can enter the corresponding annular groove 12.

[0033] Multiple medical rubber particles 15 are evenly distributed and fixed on the inner side of the annular groove 12. The medical rubber particles 15 are in close contact with the connecting ear 14. The setting of the medical rubber particles 15 makes it easy to limit the rotation of the connecting ear 14 after the handle 10 is stopped.

[0034] In summary:

[0035] This utility model addresses the technical problem of existing technology where, after sterilization, the puncture needle is placed in a metal instrument box. Due to the lack of protection for the needle tip, it often comes into contact with other hard objects or is damaged or blunted by movement from other instruments, indicating room for improvement. The present invention employs the technical solutions described in the above embodiments. Furthermore, the implementation process of the above technical solutions is as follows:

[0036] During use, after disinfection, when puncture is required, turn the handle 10, which drives the transmission rod 7 to rotate. This causes the transmission rod 7 to drive the collar 11 and connecting ear 14 to rotate synchronously. At the same time, force is applied to overcome the frictional resistance between the medical rubber particles 15 and the connecting ear 14, causing the connecting ear 14 to rotate along the inner side of the annular groove 12. Because the spiral continuous groove 8 is slidably connected to the limiting head 9, and the transmission rod 7 is slidably connected to the movable tube 6, and the transmission rod 7 is a rotating body, the spiral continuous groove 8 can push the limiting head 9 to move. This causes the limiting head 9 to drive the movable tube 6 and the inner needle body 2 to move synchronously, allowing the inner needle body 2 to drive the puncture needle 3 to extend from the inside of the outer needle tube 5, facilitating subsequent puncture work.

[0037] With the above-mentioned settings, this application will certainly solve the above-mentioned technical problems, and at the same time achieve the following technical effects:

[0038] Through the structural design of auxiliary mechanisms, cooperating components, and limiting components, this utility model makes it easy to adjust the position of the puncture needle 3 inside the outer needle tube 5. Before puncture, it can ensure that the puncture needle 3 is not accidentally pressed by external instruments. At the same time, the outer side of the inner needle body 2 is coated with Teflon, which can increase the smoothness during puncture and improve the stability and safety of the puncture process.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A novel puncture needle characterized by, The utility model provides a kind of safety needle, including hand-held part (1), and the inner needle body (2) assembled in hand-held part (1) one end, the inner needle body (2) is integrally fixed with puncture needle (3) in the end away from hand-held part (1), the hand-held part (1) and the inner needle body (2) between assembly auxiliary mechanism, the auxiliary mechanism is used to protect puncture needle (3), the auxiliary mechanism includes cooperating tube (4), outer needle tube (5) and cooperating assembly, the hand-held part (1) is fixed with cooperating tube (4) in the end away from inner needle body (2), the outer side of the inner needle body (2) is slidably connected with outer needle tube (5), and the outer needle tube (5) is fixed with hand-held part (1), and the inner needle body (2) and hand-held part (1) between assembly cooperating assembly.

2. A novel puncture needle according to claim 1, characterized in that The cooperating assembly includes movable tube (6), transmission rod (7), helical continuous groove (8) and limit head (9), the inner side of the hand-held part (1) is slidably connected with movable tube (6), the movable tube (6) is fixed with inner needle body (2), the inner side of the movable tube (6) is slidably connected with transmission rod (7), the outer side of the transmission rod (7) is provided with helical continuous groove (8), and the inner side of the helical continuous groove (8) is slidably connected with limit head (9), and the limit head (9) is fixed with movable tube (6).

3. A novel puncture needle according to claim 2, wherein The end of the transmission rod (7) is fixed with handle (10).

4. A novel puncture needle according to claim 2, wherein The limit head (9) is fixed with movable tube (6).

5. A novel puncture needle according to claim 4, wherein The limit head (9) is fixed with movable tube (6).

6. A novel puncture needle according to claim 5, characterized in that The inner side of the cooperating tube (4) is provided with two annular grooves (12) corresponding to the position of the sleeve ring (11), the sleeve ring (11) is in clearance fit with the annular groove (12), the two sides of the sleeve ring (11) are fixed with connecting lug (14), and the inside of the cooperating tube (4) is provided with linear groove (13) corresponding to the position of the connecting lug (14) on both sides, and the linear groove (13) is slidably connected with the connecting lug (14).

7. A novel puncture needle according to claim 1, wherein The inner side of the annular groove (12) is uniformly fixed with a plurality of medical rubber particles (15), and the medical rubber particles (15) are in contact with the connecting lug (14). The outer side of the inner needle body (2) and puncture needle (3) is coated with a teflon coating.

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